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> Windows > Question about VESA for professionals
i have discovered an interesting thing:
i have used VESA setmode via BIOS function:
bsetvesamode: ; bx=mode number mov ax,4f02h ;set vesa 1.0 screen mode int 10h mov ax,4f05h ;vesa 1 window select xor bx,bx xor dx,dx ; set bank 0 int 10h ;dx is the reqired bank ret
where bx = input desired video mode
was $13 - a standard mode
then i was putting random pixels to screen
the problem was when i wanted to press Print Screen button,
result: immediate hardware reset under win98 se
when setmode like this:
mov ax,$13 int 10h
Print Screen is working
could someone tell a reason?
|10 Oct 2004, 18:13||
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